Cow steroids leaking into waterways are making fish more randy, says study

By Nicky Phillips
Updated April 13 2015 - 11:08am, first published April 1 2015 - 10:47am
Research suggests male guppies change their mating behaviour when exposed to a common chemical. Photo: Alice Chaos
Research suggests male guppies change their mating behaviour when exposed to a common chemical. Photo: Alice Chaos
Research suggests male guppies change their mating behaviour when exposed to a common chemical. Photo: Alice Chaos
Research suggests male guppies change their mating behaviour when exposed to a common chemical. Photo: Alice Chaos
Research suggests male guppies change their mating behaviour when exposed to a common chemical. Photo: Alice Chaos
Research suggests male guppies change their mating behaviour when exposed to a common chemical. Photo: Alice Chaos
Research suggests male guppies change their mating behaviour when exposed to a common chemical. Photo: Alice Chaos
Research suggests male guppies change their mating behaviour when exposed to a common chemical. Photo: Alice Chaos

Many men have tried, and failed, to woo a potential partner on the dance floor. Male guppy fish, on the other hand, have mastered the art.